Answer in one word/ one sentence / state/ define.
Which optical pehnomenon proves that light is a wave?

Answer in one word/ one sentence / state/ define. Which optical phenomenon established transverse nature of em waves?

Answer in one word/one/sentence/ state/ define. What is critical frequency?

Answer in one word/one/sentence/ state/ define. What is skip distance?

Answer in one word/ one sentence / state/ define. Which em wave is used in RADAR.

Answer in one word/ one sentence / state/ define. What is the wavelength range of x-rays.

Answer in one word/one/sentence/ state/ define. What do you mean by www of internet?

Answer in one word/ one sentence / state/ define. Which mirror always produces virtual erect and image of same size and at the same distance as the object?

Answer in one word/ one sentence / state / define. Name the SI unit of magnetic flux.

Answer in one word/ one sentence / state/ define. Mention two uses each of concave mirror

Answer in one word/ one sentence / state / define. Name the CGS unit of magnetic flux.